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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@JumJum
Main focus of ESP8266 is to support Wifi.
Mostly ESP-01s are sold, and this boards only have gpio0 and gpio2.
Also based on 1400 memory blocks only, ESP8266 will never be 1st choice if you want to have and use a lot of interfaces.
If you need analog and serial, pico is a better choice. Or may be wait for node32 from espressif.
IMHO, those 3 issues @DrAzzy mentioned, should not be a showstopper.